What happens to my accumulated points or miles if I cancel?

This varies strongly per provider: with some cards (such as Flying Blue AMEX) unused miles expire immediately upon cancellation, with others points remain valid for a limited period. So always use or redeem your points before you finally cancel.

Related questions

• → How do I cancel my credit card?
• → Do I need to fully pay off my credit card before I can cancel?
• → Can I switch to another credit card provider free of charge?
• → How long does it take before a cancellation is finally processed?